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0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10
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90
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11
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12 typedef struct {
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13 ngx_str_t engine;
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14 } ngx_openssl_conf_t;
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28
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15
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0
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16
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220
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17 static int ngx_http_ssl_verify_callback(int ok, X509_STORE_CTX *x509_store);
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96
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18 static void ngx_ssl_handshake_handler(ngx_event_t *ev);
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38
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19 static ngx_int_t ngx_ssl_handle_recv(ngx_connection_t *c, int n);
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22
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20 static void ngx_ssl_write_handler(ngx_event_t *wev);
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21 static void ngx_ssl_read_handler(ngx_event_t *rev);
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126
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22 static void ngx_ssl_shutdown_handler(ngx_event_t *ev);
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96
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23 static void ngx_ssl_connection_error(ngx_connection_t *c, int sslerr,
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24 ngx_err_t err, char *text);
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272
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25
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26 static ngx_int_t ngx_ssl_session_cache_init(ngx_shm_zone_t *shm_zone,
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27 void *data);
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28 static int ngx_ssl_new_session(ngx_ssl_conn_t *ssl_conn,
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29 ngx_ssl_session_t *sess);
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30 static ngx_ssl_session_t *ngx_ssl_get_cached_session(ngx_ssl_conn_t *ssl_conn,
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31 u_char *id, int len, int *copy);
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32 static void ngx_ssl_remove_session(SSL_CTX *ssl, ngx_ssl_session_t *sess);
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33 static void ngx_ssl_expire_sessions(ngx_ssl_session_cache_t *cache,
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34 ngx_slab_pool_t *shpool, ngx_uint_t n);
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274
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35 static void ngx_ssl_session_rbtree_insert_value(ngx_rbtree_node_t *temp,
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36 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel);
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272
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37
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90
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38 static void *ngx_openssl_create_conf(ngx_cycle_t *cycle);
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39 static char *ngx_openssl_init_conf(ngx_cycle_t *cycle, void *conf);
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120
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40 static void ngx_openssl_exit(ngx_cycle_t *cycle);
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90
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41
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42 #if !(NGX_SSL_ENGINE)
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43 static char *ngx_openssl_noengine(ngx_conf_t *cf, ngx_command_t *cmd,
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44 void *conf);
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45 #endif
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46
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47
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48 static ngx_command_t ngx_openssl_commands[] = {
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49
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50 { ngx_string("ssl_engine"),
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51 NGX_MAIN_CONF|NGX_DIRECT_CONF|NGX_CONF_TAKE1,
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52 #if (NGX_SSL_ENGINE)
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53 ngx_conf_set_str_slot,
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54 #else
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55 ngx_openssl_noengine,
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56 #endif
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57 0,
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58 offsetof(ngx_openssl_conf_t, engine),
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59 NULL },
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60
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61 ngx_null_command
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62 };
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63
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64
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65 static ngx_core_module_t ngx_openssl_module_ctx = {
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66 ngx_string("openssl"),
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67 ngx_openssl_create_conf,
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68 ngx_openssl_init_conf
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126
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69 };
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90
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70
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71
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72 ngx_module_t ngx_openssl_module = {
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73 NGX_MODULE_V1,
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74 &ngx_openssl_module_ctx, /* module context */
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75 ngx_openssl_commands, /* module directives */
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76 NGX_CORE_MODULE, /* module type */
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77 NULL, /* init master */
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78 NULL, /* init module */
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79 NULL, /* init process */
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80 NULL, /* init thread */
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81 NULL, /* exit thread */
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82 NULL, /* exit process */
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120
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83 ngx_openssl_exit, /* exit master */
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90
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84 NGX_MODULE_V1_PADDING
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96
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85 };
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86
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87
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88 static long ngx_ssl_protocols[] = {
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89 SSL_OP_NO_SSLv2|SSL_OP_NO_SSLv3|SSL_OP_NO_TLSv1,
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90 SSL_OP_NO_SSLv3|SSL_OP_NO_TLSv1,
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91 SSL_OP_NO_SSLv2|SSL_OP_NO_TLSv1,
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92 SSL_OP_NO_TLSv1,
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93 SSL_OP_NO_SSLv2|SSL_OP_NO_SSLv3,
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94 SSL_OP_NO_SSLv3,
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95 SSL_OP_NO_SSLv2,
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96 0,
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97 };
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0
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98
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99
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272
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100 int ngx_ssl_connection_index;
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101 int ngx_ssl_server_conf_index;
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102 int ngx_ssl_session_cache_index;
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220
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103
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104
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38
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105 ngx_int_t
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106 ngx_ssl_init(ngx_log_t *log)
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0
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107 {
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272
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108 #if OPENSSL_VERSION_NUMBER >= 0x00907000
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109 OPENSSL_config(NULL);
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110 #endif
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111
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0
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112 SSL_library_init();
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113 SSL_load_error_strings();
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90
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114
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115 #if (NGX_SSL_ENGINE)
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28
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116 ENGINE_load_builtin_engines();
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90
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117 #endif
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0
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118
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272
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119 ngx_ssl_connection_index = SSL_get_ex_new_index(0, NULL, NULL, NULL, NULL);
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120
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121 if (ngx_ssl_connection_index == -1) {
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122 ngx_ssl_error(NGX_LOG_ALERT, log, 0, "SSL_get_ex_new_index() failed");
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123 return NGX_ERROR;
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124 }
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220
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125
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272
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126 ngx_ssl_server_conf_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL,
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127 NULL);
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128 if (ngx_ssl_server_conf_index == -1) {
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129 ngx_ssl_error(NGX_LOG_ALERT, log, 0,
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130 "SSL_CTX_get_ex_new_index() failed");
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131 return NGX_ERROR;
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132 }
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133
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134 ngx_ssl_session_cache_index = SSL_CTX_get_ex_new_index(0, NULL, NULL, NULL,
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135 NULL);
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136 if (ngx_ssl_session_cache_index == -1) {
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137 ngx_ssl_error(NGX_LOG_ALERT, log, 0,
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138 "SSL_CTX_get_ex_new_index() failed");
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220
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139 return NGX_ERROR;
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140 }
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141
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0
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142 return NGX_OK;
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143 }
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144
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145
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38
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146 ngx_int_t
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272
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147 ngx_ssl_create(ngx_ssl_t *ssl, ngx_uint_t protocols, void *data)
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96
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148 {
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126
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149 ssl->ctx = SSL_CTX_new(SSLv23_method());
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96
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150
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151 if (ssl->ctx == NULL) {
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152 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0, "SSL_CTX_new() failed");
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153 return NGX_ERROR;
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154 }
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155
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272
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156 if (SSL_CTX_set_ex_data(ssl->ctx, ngx_ssl_server_conf_index, data) == 0) {
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157 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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158 "SSL_CTX_set_ex_data() failed");
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159 return NGX_ERROR;
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160 }
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161
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126
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162 /* client side options */
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163
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164 SSL_CTX_set_options(ssl->ctx, SSL_OP_MICROSOFT_SESS_ID_BUG);
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165 SSL_CTX_set_options(ssl->ctx, SSL_OP_NETSCAPE_CHALLENGE_BUG);
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166 SSL_CTX_set_options(ssl->ctx, SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG);
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167
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168 /* server side options */
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112
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169
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170 SSL_CTX_set_options(ssl->ctx, SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG);
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171 SSL_CTX_set_options(ssl->ctx, SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER);
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172
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173 /* this option allow a potential SSL 2.0 rollback (CAN-2005-2969) */
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174 SSL_CTX_set_options(ssl->ctx, SSL_OP_MSIE_SSLV2_RSA_PADDING);
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175
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176 SSL_CTX_set_options(ssl->ctx, SSL_OP_SSLEAY_080_CLIENT_DH_BUG);
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177 SSL_CTX_set_options(ssl->ctx, SSL_OP_TLS_D5_BUG);
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178 SSL_CTX_set_options(ssl->ctx, SSL_OP_TLS_BLOCK_PADDING_BUG);
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179
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180 #ifdef SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
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181 SSL_CTX_set_options(ssl->ctx, SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS);
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182 #endif
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183
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96
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184
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185 if (ngx_ssl_protocols[protocols >> 1] != 0) {
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186 SSL_CTX_set_options(ssl->ctx, ngx_ssl_protocols[protocols >> 1]);
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187 }
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188
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189 SSL_CTX_set_mode(ssl->ctx, SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER);
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190
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191 SSL_CTX_set_read_ahead(ssl->ctx, 1);
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192
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193 return NGX_OK;
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194 }
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195
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196
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197 ngx_int_t
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112
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198 ngx_ssl_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *cert,
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199 ngx_str_t *key)
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96
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200 {
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324
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201 if (ngx_conf_full_name(cf->cycle, cert, 1) == NGX_ERROR) {
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96
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202 return NGX_ERROR;
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203 }
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204
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112
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205 if (SSL_CTX_use_certificate_chain_file(ssl->ctx, (char *) cert->data)
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96
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206 == 0)
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207 {
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208 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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112
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209 "SSL_CTX_use_certificate_chain_file(\"%s\") failed",
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210 cert->data);
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211 return NGX_ERROR;
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212 }
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213
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324
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214 if (ngx_conf_full_name(cf->cycle, key, 1) == NGX_ERROR) {
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112
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215 return NGX_ERROR;
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216 }
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217
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218 if (SSL_CTX_use_PrivateKey_file(ssl->ctx, (char *) key->data,
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196
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219 SSL_FILETYPE_PEM)
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220 == 0)
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112
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221 {
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222 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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223 "SSL_CTX_use_PrivateKey_file(\"%s\") failed", key->data);
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96
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224 return NGX_ERROR;
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225 }
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226
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227 return NGX_OK;
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228 }
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229
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230
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231 ngx_int_t
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220
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232 ngx_ssl_client_certificate(ngx_conf_t *cf, ngx_ssl_t *ssl, ngx_str_t *cert,
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233 ngx_int_t depth)
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196
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234 {
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220
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235 STACK_OF(X509_NAME) *list;
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236
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237 SSL_CTX_set_verify(ssl->ctx, SSL_VERIFY_PEER, ngx_http_ssl_verify_callback);
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238
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239 SSL_CTX_set_verify_depth(ssl->ctx, depth);
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240
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241 if (cert->len == 0) {
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242 return NGX_OK;
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243 }
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244
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324
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245 if (ngx_conf_full_name(cf->cycle, cert, 1) == NGX_ERROR) {
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196
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246 return NGX_ERROR;
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247 }
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248
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249 if (SSL_CTX_load_verify_locations(ssl->ctx, (char *) cert->data, NULL)
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250 == 0)
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251 {
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252 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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253 "SSL_CTX_load_verify_locations(\"%s\") failed",
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254 cert->data);
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255 return NGX_ERROR;
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256 }
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257
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220
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258 list = SSL_load_client_CA_file((char *) cert->data);
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259
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260 if (list == NULL) {
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261 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
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262 "SSL_load_client_CA_file(\"%s\") failed", cert->data);
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263 return NGX_ERROR;
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264 }
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265
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266 /*
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267 * before 0.9.7h and 0.9.8 SSL_load_client_CA_file()
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268 * always leaved an error in the error queue
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269 */
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270
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271 ERR_clear_error();
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272
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273 SSL_CTX_set_client_CA_list(ssl->ctx, list);
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274
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196
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275 return NGX_OK;
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276 }
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277
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278
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220
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279 static int
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280 ngx_http_ssl_verify_callback(int ok, X509_STORE_CTX *x509_store)
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281 {
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282 char *subject, *issuer;
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283 int err, depth;
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284 X509 *cert;
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285 X509_NAME *name;
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286 ngx_connection_t *c;
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287 ngx_ssl_conn_t *ssl_conn;
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288
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289 ssl_conn = X509_STORE_CTX_get_ex_data(x509_store,
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290 SSL_get_ex_data_X509_STORE_CTX_idx());
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291
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292 c = ngx_ssl_get_connection(ssl_conn);
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293
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294 cert = X509_STORE_CTX_get_current_cert(x509_store);
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295 err = X509_STORE_CTX_get_error(x509_store);
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296 depth = X509_STORE_CTX_get_error_depth(x509_store);
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297
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298 name = X509_get_subject_name(cert);
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299 subject = name ? X509_NAME_oneline(name, NULL, 0) : "(none)";
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300
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301 name = X509_get_issuer_name(cert);
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302 issuer = name ? X509_NAME_oneline(name, NULL, 0) : "(none)";
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303
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272
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304 ngx_log_debug5(NGX_LOG_DEBUG_EVENT, c->log, 0,
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220
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305 "verify:%d, error:%d, depth:%d, "
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306 "subject:\"%s\",issuer: \"%s\"",
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307 ok, err, depth, subject, issuer);
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308
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309 return 1;
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310 }
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311
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312
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196
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313 ngx_int_t
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96
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314 ngx_ssl_generate_rsa512_key(ngx_ssl_t *ssl)
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315 {
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220
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316 RSA *key;
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317
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108
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318 if (SSL_CTX_need_tmp_RSA(ssl->ctx) == 0) {
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319 return NGX_OK;
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320 }
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321
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220
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322 key = RSA_generate_key(512, RSA_F4, NULL, NULL);
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96
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323
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220
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324 if (key) {
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325 SSL_CTX_set_tmp_rsa(ssl->ctx, key);
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326
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327 RSA_free(key);
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328
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96
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329 return NGX_OK;
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330 }
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331
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332 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0, "RSA_generate_key(512) failed");
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333
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334 return NGX_ERROR;
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335 }
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336
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337
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338 ngx_int_t
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339 ngx_ssl_create_connection(ngx_ssl_t *ssl, ngx_connection_t *c, ngx_uint_t flags)
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126
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340 {
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96
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341 ngx_ssl_connection_t *sc;
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0
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342
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96
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343 sc = ngx_pcalloc(c->pool, sizeof(ngx_ssl_connection_t));
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344 if (sc == NULL) {
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0
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345 return NGX_ERROR;
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346 }
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347
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92
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348 if (flags & NGX_SSL_BUFFER) {
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96
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349 sc->buffer = 1;
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92
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350
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96
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351 sc->buf = ngx_create_temp_buf(c->pool, NGX_SSL_BUFSIZE);
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352 if (sc->buf == NULL) {
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92
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353 return NGX_ERROR;
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354 }
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0
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355 }
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356
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96
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357 sc->connection = SSL_new(ssl->ctx);
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0
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358
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96
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359 if (sc->connection == NULL) {
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0
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360 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_new() failed");
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361 return NGX_ERROR;
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362 }
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363
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96
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364 if (SSL_set_fd(sc->connection, c->fd) == 0) {
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0
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365 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_fd() failed");
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366 return NGX_ERROR;
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367 }
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368
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126
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369 if (flags & NGX_SSL_CLIENT) {
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370 SSL_set_connect_state(sc->connection);
|
|
|
371
|
|
|
372 } else {
|
|
|
373 SSL_set_accept_state(sc->connection);
|
|
|
374 }
|
|
0
|
375
|
|
272
|
376 if (SSL_set_ex_data(sc->connection, ngx_ssl_connection_index, c) == 0) {
|
|
220
|
377 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_ex_data() failed");
|
|
|
378 return NGX_ERROR;
|
|
|
379 }
|
|
|
380
|
|
96
|
381 c->ssl = sc;
|
|
0
|
382
|
|
|
383 return NGX_OK;
|
|
|
384 }
|
|
|
385
|
|
|
386
|
|
96
|
387 ngx_int_t
|
|
126
|
388 ngx_ssl_set_session(ngx_connection_t *c, ngx_ssl_session_t *session)
|
|
|
389 {
|
|
|
390 if (session) {
|
|
|
391 if (SSL_set_session(c->ssl->connection, session) == 0) {
|
|
|
392 ngx_ssl_error(NGX_LOG_ALERT, c->log, 0, "SSL_set_session() failed");
|
|
|
393 return NGX_ERROR;
|
|
|
394 }
|
|
|
395 }
|
|
|
396
|
|
|
397 return NGX_OK;
|
|
|
398 }
|
|
|
399
|
|
|
400
|
|
|
401 ngx_int_t
|
|
96
|
402 ngx_ssl_handshake(ngx_connection_t *c)
|
|
|
403 {
|
|
|
404 int n, sslerr;
|
|
|
405 ngx_err_t err;
|
|
|
406
|
|
|
407 n = SSL_do_handshake(c->ssl->connection);
|
|
|
408
|
|
126
|
409 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_do_handshake: %d", n);
|
|
96
|
410
|
|
|
411 if (n == 1) {
|
|
|
412
|
|
|
413 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
414 return NGX_ERROR;
|
|
|
415 }
|
|
|
416
|
|
|
417 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
418 return NGX_ERROR;
|
|
|
419 }
|
|
|
420
|
|
|
421 #if (NGX_DEBUG)
|
|
|
422 {
|
|
|
423 char buf[129], *s, *d;
|
|
|
424 SSL_CIPHER *cipher;
|
|
|
425
|
|
|
426 cipher = SSL_get_current_cipher(c->ssl->connection);
|
|
|
427
|
|
|
428 if (cipher) {
|
|
|
429 SSL_CIPHER_description(cipher, &buf[1], 128);
|
|
|
430
|
|
|
431 for (s = &buf[1], d = buf; *s; s++) {
|
|
|
432 if (*s == ' ' && *d == ' ') {
|
|
|
433 continue;
|
|
|
434 }
|
|
|
435
|
|
|
436 if (*s == LF || *s == CR) {
|
|
|
437 continue;
|
|
|
438 }
|
|
|
439
|
|
|
440 *++d = *s;
|
|
|
441 }
|
|
|
442
|
|
|
443 if (*d != ' ') {
|
|
|
444 d++;
|
|
|
445 }
|
|
|
446
|
|
|
447 *d = '\0';
|
|
|
448
|
|
132
|
449 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
96
|
450 "SSL: %s, cipher: \"%s\"",
|
|
126
|
451 SSL_get_version(c->ssl->connection), &buf[1]);
|
|
96
|
452
|
|
|
453 if (SSL_session_reused(c->ssl->connection)) {
|
|
132
|
454 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
96
|
455 "SSL reused session");
|
|
|
456 }
|
|
|
457
|
|
|
458 } else {
|
|
|
459 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
126
|
460 "SSL no shared ciphers");
|
|
96
|
461 }
|
|
|
462 }
|
|
|
463 #endif
|
|
|
464
|
|
|
465 c->ssl->handshaked = 1;
|
|
|
466
|
|
|
467 c->recv = ngx_ssl_recv;
|
|
|
468 c->send = ngx_ssl_write;
|
|
126
|
469 c->recv_chain = ngx_ssl_recv_chain;
|
|
|
470 c->send_chain = ngx_ssl_send_chain;
|
|
96
|
471
|
|
|
472 return NGX_OK;
|
|
|
473 }
|
|
|
474
|
|
|
475 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
|
476
|
|
|
477 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
478
|
|
|
479 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
|
480 c->read->ready = 0;
|
|
|
481 c->read->handler = ngx_ssl_handshake_handler;
|
|
140
|
482 c->write->handler = ngx_ssl_handshake_handler;
|
|
96
|
483
|
|
|
484 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
485 return NGX_ERROR;
|
|
|
486 }
|
|
|
487
|
|
|
488 return NGX_AGAIN;
|
|
|
489 }
|
|
|
490
|
|
|
491 if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
|
492 c->write->ready = 0;
|
|
140
|
493 c->read->handler = ngx_ssl_handshake_handler;
|
|
96
|
494 c->write->handler = ngx_ssl_handshake_handler;
|
|
|
495
|
|
|
496 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
497 return NGX_ERROR;
|
|
|
498 }
|
|
|
499
|
|
|
500 return NGX_AGAIN;
|
|
|
501 }
|
|
|
502
|
|
|
503 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
504
|
|
|
505 c->ssl->no_wait_shutdown = 1;
|
|
|
506 c->ssl->no_send_shutdown = 1;
|
|
140
|
507 c->read->eof = 1;
|
|
96
|
508
|
|
|
509 if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
|
|
|
510 ngx_log_error(NGX_LOG_INFO, c->log, err,
|
|
126
|
511 "peer closed connection in SSL handshake");
|
|
96
|
512
|
|
|
513 return NGX_ERROR;
|
|
|
514 }
|
|
|
515
|
|
140
|
516 c->read->error = 1;
|
|
|
517
|
|
96
|
518 ngx_ssl_connection_error(c, sslerr, err, "SSL_do_handshake() failed");
|
|
|
519
|
|
|
520 return NGX_ERROR;
|
|
|
521 }
|
|
|
522
|
|
|
523
|
|
|
524 static void
|
|
|
525 ngx_ssl_handshake_handler(ngx_event_t *ev)
|
|
|
526 {
|
|
|
527 ngx_connection_t *c;
|
|
|
528
|
|
|
529 c = ev->data;
|
|
|
530
|
|
98
|
531 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
126
|
532 "SSL handshake handler: %d", ev->write);
|
|
96
|
533
|
|
140
|
534 if (ev->timedout) {
|
|
|
535 c->ssl->handler(c);
|
|
|
536 return;
|
|
|
537 }
|
|
|
538
|
|
96
|
539 if (ngx_ssl_handshake(c) == NGX_AGAIN) {
|
|
|
540 return;
|
|
|
541 }
|
|
|
542
|
|
|
543 c->ssl->handler(c);
|
|
|
544 }
|
|
|
545
|
|
|
546
|
|
38
|
547 ssize_t
|
|
126
|
548 ngx_ssl_recv_chain(ngx_connection_t *c, ngx_chain_t *cl)
|
|
|
549 {
|
|
294
|
550 u_char *last;
|
|
126
|
551 ssize_t n, bytes;
|
|
|
552 ngx_buf_t *b;
|
|
|
553
|
|
|
554 bytes = 0;
|
|
|
555
|
|
294
|
556 b = cl->buf;
|
|
|
557 last = b->last;
|
|
|
558
|
|
|
559 for ( ;; ) {
|
|
|
560
|
|
|
561 n = ngx_ssl_recv(c, last, b->end - last);
|
|
126
|
562
|
|
|
563 if (n > 0) {
|
|
294
|
564 last += n;
|
|
126
|
565 bytes += n;
|
|
|
566
|
|
294
|
567 if (last == b->end) {
|
|
126
|
568 cl = cl->next;
|
|
294
|
569
|
|
|
570 if (cl == NULL) {
|
|
|
571 return bytes;
|
|
|
572 }
|
|
|
573
|
|
|
574 b = cl->buf;
|
|
|
575 last = b->last;
|
|
126
|
576 }
|
|
|
577
|
|
|
578 continue;
|
|
|
579 }
|
|
|
580
|
|
|
581 if (bytes) {
|
|
|
582 return bytes;
|
|
|
583 }
|
|
|
584
|
|
|
585 return n;
|
|
|
586 }
|
|
|
587 }
|
|
|
588
|
|
|
589
|
|
|
590 ssize_t
|
|
38
|
591 ngx_ssl_recv(ngx_connection_t *c, u_char *buf, size_t size)
|
|
0
|
592 {
|
|
38
|
593 int n, bytes;
|
|
|
594
|
|
|
595 if (c->ssl->last == NGX_ERROR) {
|
|
330
|
596 c->read->error = 1;
|
|
38
|
597 return NGX_ERROR;
|
|
|
598 }
|
|
|
599
|
|
126
|
600 if (c->ssl->last == NGX_DONE) {
|
|
330
|
601 c->read->ready = 0;
|
|
|
602 c->read->eof = 1;
|
|
126
|
603 return 0;
|
|
|
604 }
|
|
|
605
|
|
38
|
606 bytes = 0;
|
|
0
|
607
|
|
38
|
608 /*
|
|
|
609 * SSL_read() may return data in parts, so try to read
|
|
|
610 * until SSL_read() would return no data
|
|
|
611 */
|
|
|
612
|
|
|
613 for ( ;; ) {
|
|
0
|
614
|
|
92
|
615 n = SSL_read(c->ssl->connection, buf, size);
|
|
38
|
616
|
|
126
|
617 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_read: %d", n);
|
|
0
|
618
|
|
38
|
619 if (n > 0) {
|
|
|
620 bytes += n;
|
|
|
621 }
|
|
|
622
|
|
|
623 c->ssl->last = ngx_ssl_handle_recv(c, n);
|
|
|
624
|
|
330
|
625 if (c->ssl->last == NGX_OK) {
|
|
|
626
|
|
|
627 size -= n;
|
|
|
628
|
|
|
629 if (size == 0) {
|
|
38
|
630 return bytes;
|
|
126
|
631 }
|
|
38
|
632
|
|
330
|
633 buf += n;
|
|
|
634
|
|
|
635 continue;
|
|
|
636 }
|
|
|
637
|
|
|
638 if (bytes) {
|
|
|
639 return bytes;
|
|
|
640 }
|
|
|
641
|
|
|
642 switch (c->ssl->last) {
|
|
|
643
|
|
|
644 case NGX_DONE:
|
|
|
645 c->read->ready = 0;
|
|
|
646 c->read->eof = 1;
|
|
|
647 return 0;
|
|
|
648
|
|
|
649 case NGX_ERROR:
|
|
|
650 c->read->error = 1;
|
|
|
651
|
|
|
652 /* fall thruogh */
|
|
|
653
|
|
|
654 case NGX_AGAIN:
|
|
126
|
655 return c->ssl->last;
|
|
28
|
656 }
|
|
38
|
657 }
|
|
|
658 }
|
|
|
659
|
|
|
660
|
|
|
661 static ngx_int_t
|
|
|
662 ngx_ssl_handle_recv(ngx_connection_t *c, int n)
|
|
|
663 {
|
|
96
|
664 int sslerr;
|
|
|
665 ngx_err_t err;
|
|
38
|
666
|
|
|
667 if (n > 0) {
|
|
28
|
668
|
|
22
|
669 if (c->ssl->saved_write_handler) {
|
|
|
670
|
|
58
|
671 c->write->handler = c->ssl->saved_write_handler;
|
|
22
|
672 c->ssl->saved_write_handler = NULL;
|
|
|
673 c->write->ready = 1;
|
|
|
674
|
|
|
675 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
676 return NGX_ERROR;
|
|
|
677 }
|
|
|
678
|
|
112
|
679 ngx_post_event(c->write, &ngx_posted_events);
|
|
22
|
680 }
|
|
|
681
|
|
38
|
682 return NGX_OK;
|
|
0
|
683 }
|
|
|
684
|
|
92
|
685 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
0
|
686
|
|
|
687 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
688
|
|
|
689 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
690
|
|
|
691 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
4
|
692 c->read->ready = 0;
|
|
0
|
693 return NGX_AGAIN;
|
|
|
694 }
|
|
|
695
|
|
|
696 if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
88
|
697
|
|
96
|
698 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
126
|
699 "peer started SSL renegotiation");
|
|
22
|
700
|
|
|
701 c->write->ready = 0;
|
|
|
702
|
|
|
703 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
704 return NGX_ERROR;
|
|
|
705 }
|
|
|
706
|
|
|
707 /*
|
|
|
708 * we do not set the timer because there is already the read event timer
|
|
|
709 */
|
|
|
710
|
|
|
711 if (c->ssl->saved_write_handler == NULL) {
|
|
58
|
712 c->ssl->saved_write_handler = c->write->handler;
|
|
|
713 c->write->handler = ngx_ssl_write_handler;
|
|
22
|
714 }
|
|
|
715
|
|
0
|
716 return NGX_AGAIN;
|
|
|
717 }
|
|
|
718
|
|
96
|
719 c->ssl->no_wait_shutdown = 1;
|
|
|
720 c->ssl->no_send_shutdown = 1;
|
|
0
|
721
|
|
|
722 if (sslerr == SSL_ERROR_ZERO_RETURN || ERR_peek_error() == 0) {
|
|
126
|
723 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
724 "peer shutdown SSL cleanly");
|
|
|
725 return NGX_DONE;
|
|
0
|
726 }
|
|
|
727
|
|
96
|
728 ngx_ssl_connection_error(c, sslerr, err, "SSL_read() failed");
|
|
0
|
729
|
|
|
730 return NGX_ERROR;
|
|
|
731 }
|
|
|
732
|
|
|
733
|
|
38
|
734 static void
|
|
|
735 ngx_ssl_write_handler(ngx_event_t *wev)
|
|
22
|
736 {
|
|
|
737 ngx_connection_t *c;
|
|
|
738
|
|
|
739 c = wev->data;
|
|
96
|
740
|
|
58
|
741 c->read->handler(c->read);
|
|
22
|
742 }
|
|
|
743
|
|
|
744
|
|
0
|
745 /*
|
|
|
746 * OpenSSL has no SSL_writev() so we copy several bufs into our 16K buffer
|
|
22
|
747 * before the SSL_write() call to decrease a SSL overhead.
|
|
0
|
748 *
|
|
|
749 * Besides for protocols such as HTTP it is possible to always buffer
|
|
|
750 * the output to decrease a SSL overhead some more.
|
|
|
751 */
|
|
|
752
|
|
38
|
753 ngx_chain_t *
|
|
|
754 ngx_ssl_send_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit)
|
|
0
|
755 {
|
|
|
756 int n;
|
|
|
757 ngx_uint_t flush;
|
|
|
758 ssize_t send, size;
|
|
|
759 ngx_buf_t *buf;
|
|
|
760
|
|
146
|
761 if (!c->ssl->buffer
|
|
|
762 || (in && in->next == NULL && !(c->buffered & NGX_SSL_BUFFERED)))
|
|
|
763 {
|
|
0
|
764 /*
|
|
126
|
765 * we avoid a buffer copy if
|
|
|
766 * we do not need to buffer the output
|
|
|
767 * or the incoming buf is a single and our buffer is empty
|
|
0
|
768 */
|
|
|
769
|
|
126
|
770 while (in) {
|
|
|
771 if (ngx_buf_special(in->buf)) {
|
|
|
772 in = in->next;
|
|
|
773 continue;
|
|
|
774 }
|
|
0
|
775
|
|
126
|
776 n = ngx_ssl_write(c, in->buf->pos, in->buf->last - in->buf->pos);
|
|
|
777
|
|
|
778 if (n == NGX_ERROR) {
|
|
|
779 return NGX_CHAIN_ERROR;
|
|
|
780 }
|
|
0
|
781
|
|
126
|
782 if (n == NGX_AGAIN) {
|
|
146
|
783 c->buffered |= NGX_SSL_BUFFERED;
|
|
126
|
784 return in;
|
|
|
785 }
|
|
|
786
|
|
|
787 in->buf->pos += n;
|
|
|
788
|
|
|
789 if (in->buf->pos == in->buf->last) {
|
|
|
790 in = in->next;
|
|
|
791 }
|
|
0
|
792 }
|
|
|
793
|
|
|
794 return in;
|
|
|
795 }
|
|
|
796
|
|
22
|
797
|
|
|
798 /* the maximum limit size is the maximum uint32_t value - the page size */
|
|
|
799
|
|
324
|
800 if (limit == 0 || limit > (off_t) (NGX_MAX_UINT32_VALUE - ngx_pagesize)) {
|
|
22
|
801 limit = NGX_MAX_UINT32_VALUE - ngx_pagesize;
|
|
|
802 }
|
|
|
803
|
|
|
804
|
|
126
|
805 buf = c->ssl->buf;
|
|
0
|
806 send = 0;
|
|
|
807 flush = (in == NULL) ? 1 : 0;
|
|
|
808
|
|
|
809 for ( ;; ) {
|
|
|
810
|
|
|
811 while (in && buf->last < buf->end) {
|
|
132
|
812 if (in->buf->last_buf || in->buf->flush) {
|
|
0
|
813 flush = 1;
|
|
|
814 }
|
|
|
815
|
|
|
816 if (ngx_buf_special(in->buf)) {
|
|
|
817 in = in->next;
|
|
|
818 continue;
|
|
|
819 }
|
|
|
820
|
|
|
821 size = in->buf->last - in->buf->pos;
|
|
|
822
|
|
|
823 if (size > buf->end - buf->last) {
|
|
|
824 size = buf->end - buf->last;
|
|
|
825 }
|
|
|
826
|
|
|
827 if (send + size > limit) {
|
|
126
|
828 size = (ssize_t) (limit - send);
|
|
0
|
829 flush = 1;
|
|
|
830 }
|
|
|
831
|
|
|
832 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
833 "SSL buf copy: %d", size);
|
|
|
834
|
|
|
835 ngx_memcpy(buf->last, in->buf->pos, size);
|
|
|
836
|
|
|
837 buf->last += size;
|
|
|
838
|
|
|
839 in->buf->pos += size;
|
|
126
|
840
|
|
0
|
841 if (in->buf->pos == in->buf->last) {
|
|
|
842 in = in->next;
|
|
|
843 }
|
|
|
844 }
|
|
|
845
|
|
|
846 size = buf->last - buf->pos;
|
|
|
847
|
|
|
848 if (!flush && buf->last < buf->end && c->ssl->buffer) {
|
|
|
849 break;
|
|
|
850 }
|
|
|
851
|
|
|
852 n = ngx_ssl_write(c, buf->pos, size);
|
|
|
853
|
|
|
854 if (n == NGX_ERROR) {
|
|
|
855 return NGX_CHAIN_ERROR;
|
|
|
856 }
|
|
|
857
|
|
60
|
858 if (n == NGX_AGAIN) {
|
|
146
|
859 c->buffered |= NGX_SSL_BUFFERED;
|
|
60
|
860 return in;
|
|
0
|
861 }
|
|
|
862
|
|
|
863 buf->pos += n;
|
|
|
864 send += n;
|
|
|
865 c->sent += n;
|
|
|
866
|
|
|
867 if (n < size) {
|
|
|
868 break;
|
|
|
869 }
|
|
|
870
|
|
|
871 if (buf->pos == buf->last) {
|
|
|
872 buf->pos = buf->start;
|
|
|
873 buf->last = buf->start;
|
|
|
874 }
|
|
|
875
|
|
|
876 if (in == NULL || send == limit) {
|
|
|
877 break;
|
|
|
878 }
|
|
|
879 }
|
|
|
880
|
|
146
|
881 if (buf->pos < buf->last) {
|
|
|
882 c->buffered |= NGX_SSL_BUFFERED;
|
|
|
883
|
|
|
884 } else {
|
|
|
885 c->buffered &= ~NGX_SSL_BUFFERED;
|
|
|
886 }
|
|
0
|
887
|
|
|
888 return in;
|
|
|
889 }
|
|
|
890
|
|
|
891
|
|
88
|
892 ssize_t
|
|
38
|
893 ngx_ssl_write(ngx_connection_t *c, u_char *data, size_t size)
|
|
0
|
894 {
|
|
96
|
895 int n, sslerr;
|
|
|
896 ngx_err_t err;
|
|
0
|
897
|
|
|
898 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL to write: %d", size);
|
|
|
899
|
|
92
|
900 n = SSL_write(c->ssl->connection, data, size);
|
|
0
|
901
|
|
|
902 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_write: %d", n);
|
|
|
903
|
|
|
904 if (n > 0) {
|
|
88
|
905
|
|
22
|
906 if (c->ssl->saved_read_handler) {
|
|
|
907
|
|
58
|
908 c->read->handler = c->ssl->saved_read_handler;
|
|
22
|
909 c->ssl->saved_read_handler = NULL;
|
|
|
910 c->read->ready = 1;
|
|
|
911
|
|
|
912 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
913 return NGX_ERROR;
|
|
|
914 }
|
|
|
915
|
|
112
|
916 ngx_post_event(c->read, &ngx_posted_events);
|
|
22
|
917 }
|
|
|
918
|
|
0
|
919 return n;
|
|
|
920 }
|
|
|
921
|
|
92
|
922 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
0
|
923
|
|
|
924 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
925
|
|
|
926 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_get_error: %d", sslerr);
|
|
|
927
|
|
|
928 if (sslerr == SSL_ERROR_WANT_WRITE) {
|
|
|
929 c->write->ready = 0;
|
|
|
930 return NGX_AGAIN;
|
|
|
931 }
|
|
|
932
|
|
|
933 if (sslerr == SSL_ERROR_WANT_READ) {
|
|
2
|
934
|
|
96
|
935 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
126
|
936 "peer started SSL renegotiation");
|
|
22
|
937
|
|
|
938 c->read->ready = 0;
|
|
|
939
|
|
|
940 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
941 return NGX_ERROR;
|
|
|
942 }
|
|
|
943
|
|
|
944 /*
|
|
|
945 * we do not set the timer because there is already
|
|
|
946 * the write event timer
|
|
|
947 */
|
|
|
948
|
|
|
949 if (c->ssl->saved_read_handler == NULL) {
|
|
58
|
950 c->ssl->saved_read_handler = c->read->handler;
|
|
|
951 c->read->handler = ngx_ssl_read_handler;
|
|
22
|
952 }
|
|
|
953
|
|
0
|
954 return NGX_AGAIN;
|
|
|
955 }
|
|
|
956
|
|
96
|
957 c->ssl->no_wait_shutdown = 1;
|
|
|
958 c->ssl->no_send_shutdown = 1;
|
|
140
|
959 c->write->error = 1;
|
|
92
|
960
|
|
96
|
961 ngx_ssl_connection_error(c, sslerr, err, "SSL_write() failed");
|
|
0
|
962
|
|
|
963 return NGX_ERROR;
|
|
|
964 }
|
|
|
965
|
|
|
966
|
|
38
|
967 static void
|
|
|
968 ngx_ssl_read_handler(ngx_event_t *rev)
|
|
22
|
969 {
|
|
|
970 ngx_connection_t *c;
|
|
|
971
|
|
|
972 c = rev->data;
|
|
96
|
973
|
|
58
|
974 c->write->handler(c->write);
|
|
22
|
975 }
|
|
|
976
|
|
|
977
|
|
38
|
978 ngx_int_t
|
|
|
979 ngx_ssl_shutdown(ngx_connection_t *c)
|
|
0
|
980 {
|
|
22
|
981 int n, sslerr, mode;
|
|
140
|
982 ngx_err_t err;
|
|
0
|
983 ngx_uint_t again;
|
|
|
984
|
|
126
|
985 if (c->timedout) {
|
|
96
|
986 mode = SSL_RECEIVED_SHUTDOWN|SSL_SENT_SHUTDOWN;
|
|
0
|
987
|
|
96
|
988 } else {
|
|
|
989 mode = SSL_get_shutdown(c->ssl->connection);
|
|
22
|
990
|
|
96
|
991 if (c->ssl->no_wait_shutdown) {
|
|
|
992 mode |= SSL_RECEIVED_SHUTDOWN;
|
|
0
|
993 }
|
|
|
994
|
|
96
|
995 if (c->ssl->no_send_shutdown) {
|
|
|
996 mode |= SSL_SENT_SHUTDOWN;
|
|
0
|
997 }
|
|
|
998 }
|
|
|
999
|
|
96
|
1000 SSL_set_shutdown(c->ssl->connection, mode);
|
|
|
1001
|
|
0
|
1002 again = 0;
|
|
10
|
1003 sslerr = 0;
|
|
0
|
1004
|
|
|
1005 for ( ;; ) {
|
|
92
|
1006 n = SSL_shutdown(c->ssl->connection);
|
|
0
|
1007
|
|
|
1008 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0, "SSL_shutdown: %d", n);
|
|
|
1009
|
|
126
|
1010 if (n == 1 || (n == 0 && c->timedout)) {
|
|
92
|
1011 SSL_free(c->ssl->connection);
|
|
22
|
1012 c->ssl = NULL;
|
|
92
|
1013
|
|
22
|
1014 return NGX_OK;
|
|
|
1015 }
|
|
|
1016
|
|
0
|
1017 if (n == 0) {
|
|
|
1018 again = 1;
|
|
|
1019 break;
|
|
|
1020 }
|
|
|
1021
|
|
|
1022 break;
|
|
|
1023 }
|
|
|
1024
|
|
|
1025 if (!again) {
|
|
92
|
1026 sslerr = SSL_get_error(c->ssl->connection, n);
|
|
0
|
1027
|
|
|
1028 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
1029 "SSL_get_error: %d", sslerr);
|
|
|
1030 }
|
|
|
1031
|
|
138
|
1032 if (again
|
|
|
1033 || sslerr == SSL_ERROR_WANT_READ
|
|
|
1034 || sslerr == SSL_ERROR_WANT_WRITE)
|
|
|
1035 {
|
|
126
|
1036 c->read->handler = ngx_ssl_shutdown_handler;
|
|
138
|
1037 c->write->handler = ngx_ssl_shutdown_handler;
|
|
126
|
1038
|
|
0
|
1039 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
|
1040 return NGX_ERROR;
|
|
|
1041 }
|
|
|
1042
|
|
|
1043 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
1044 return NGX_ERROR;
|
|
|
1045 }
|
|
|
1046
|
|
138
|
1047 if (again || sslerr == SSL_ERROR_WANT_READ) {
|
|
|
1048 ngx_add_timer(c->read, 30000);
|
|
|
1049 }
|
|
|
1050
|
|
0
|
1051 return NGX_AGAIN;
|
|
|
1052 }
|
|
|
1053
|
|
140
|
1054 err = (sslerr == SSL_ERROR_SYSCALL) ? ngx_errno : 0;
|
|
|
1055
|
|
|
1056 ngx_ssl_connection_error(c, sslerr, err, "SSL_shutdown() failed");
|
|
0
|
1057
|
|
92
|
1058 SSL_free(c->ssl->connection);
|
|
|
1059 c->ssl = NULL;
|
|
|
1060
|
|
0
|
1061 return NGX_ERROR;
|
|
|
1062 }
|
|
|
1063
|
|
|
1064
|
|
96
|
1065 static void
|
|
126
|
1066 ngx_ssl_shutdown_handler(ngx_event_t *ev)
|
|
|
1067 {
|
|
|
1068 ngx_connection_t *c;
|
|
|
1069 ngx_connection_handler_pt handler;
|
|
|
1070
|
|
|
1071 c = ev->data;
|
|
|
1072 handler = c->ssl->handler;
|
|
|
1073
|
|
|
1074 if (ev->timedout) {
|
|
|
1075 c->timedout = 1;
|
|
|
1076 }
|
|
|
1077
|
|
272
|
1078 ngx_log_debug0(NGX_LOG_DEBUG_EVENT, ev->log, 0, "SSL shutdown handler");
|
|
126
|
1079
|
|
|
1080 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
1081 return;
|
|
|
1082 }
|
|
|
1083
|
|
|
1084 handler(c);
|
|
|
1085 }
|
|
|
1086
|
|
|
1087
|
|
|
1088 static void
|
|
96
|
1089 ngx_ssl_connection_error(ngx_connection_t *c, int sslerr, ngx_err_t err,
|
|
|
1090 char *text)
|
|
|
1091 {
|
|
|
1092 ngx_uint_t level;
|
|
|
1093
|
|
|
1094 level = NGX_LOG_CRIT;
|
|
|
1095
|
|
|
1096 if (sslerr == SSL_ERROR_SYSCALL) {
|
|
|
1097
|
|
|
1098 if (err == NGX_ECONNRESET
|
|
|
1099 || err == NGX_EPIPE
|
|
|
1100 || err == NGX_ENOTCONN
|
|
138
|
1101 #if !(NGX_CRIT_ETIMEDOUT)
|
|
|
1102 || err == NGX_ETIMEDOUT
|
|
|
1103 #endif
|
|
96
|
1104 || err == NGX_ECONNREFUSED
|
|
|
1105 || err == NGX_EHOSTUNREACH)
|
|
|
1106 {
|
|
|
1107 switch (c->log_error) {
|
|
|
1108
|
|
|
1109 case NGX_ERROR_IGNORE_ECONNRESET:
|
|
|
1110 case NGX_ERROR_INFO:
|
|
|
1111 level = NGX_LOG_INFO;
|
|
|
1112 break;
|
|
|
1113
|
|
|
1114 case NGX_ERROR_ERR:
|
|
|
1115 level = NGX_LOG_ERR;
|
|
|
1116 break;
|
|
|
1117
|
|
|
1118 default:
|
|
|
1119 break;
|
|
|
1120 }
|
|
|
1121 }
|
|
|
1122 }
|
|
|
1123
|
|
|
1124 ngx_ssl_error(level, c->log, err, text);
|
|
|
1125 }
|
|
|
1126
|
|
|
1127
|
|
132
|
1128 void ngx_cdecl
|
|
38
|
1129 ngx_ssl_error(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, char *fmt, ...)
|
|
126
|
1130 {
|
|
96
|
1131 u_long n;
|
|
|
1132 va_list args;
|
|
10
|
1133 u_char errstr[NGX_MAX_CONF_ERRSTR], *p, *last;
|
|
|
1134
|
|
|
1135 last = errstr + NGX_MAX_CONF_ERRSTR;
|
|
0
|
1136
|
|
|
1137 va_start(args, fmt);
|
|
10
|
1138 p = ngx_vsnprintf(errstr, sizeof(errstr) - 1, fmt, args);
|
|
0
|
1139 va_end(args);
|
|
|
1140
|
|
96
|
1141 p = ngx_cpystrn(p, (u_char *) " (SSL:", last - p);
|
|
|
1142
|
|
132
|
1143 while (p < last) {
|
|
|
1144
|
|
|
1145 n = ERR_get_error();
|
|
|
1146
|
|
|
1147 if (n == 0) {
|
|
|
1148 break;
|
|
|
1149 }
|
|
96
|
1150
|
|
|
1151 *p++ = ' ';
|
|
0
|
1152
|
|
96
|
1153 ERR_error_string_n(n, (char *) p, last - p);
|
|
|
1154
|
|
|
1155 while (p < last && *p) {
|
|
|
1156 p++;
|
|
|
1157 }
|
|
|
1158 }
|
|
0
|
1159
|
|
|
1160 ngx_log_error(level, log, err, "%s)", errstr);
|
|
|
1161 }
|
|
58
|
1162
|
|
|
1163
|
|
272
|
1164 ngx_int_t
|
|
|
1165 ngx_ssl_session_cache(ngx_ssl_t *ssl, ngx_str_t *sess_ctx,
|
|
|
1166 ssize_t builtin_session_cache, ngx_shm_zone_t *shm_zone, time_t timeout)
|
|
|
1167 {
|
|
|
1168 long cache_mode;
|
|
|
1169
|
|
|
1170 cache_mode = SSL_SESS_CACHE_SERVER;
|
|
|
1171
|
|
|
1172 if (shm_zone && builtin_session_cache == NGX_SSL_NO_BUILTIN_SCACHE) {
|
|
|
1173 cache_mode |= SSL_SESS_CACHE_NO_INTERNAL;
|
|
|
1174 }
|
|
|
1175
|
|
|
1176 SSL_CTX_set_session_cache_mode(ssl->ctx, cache_mode);
|
|
|
1177
|
|
|
1178 SSL_CTX_set_session_id_context(ssl->ctx, sess_ctx->data, sess_ctx->len);
|
|
|
1179
|
|
|
1180 if (builtin_session_cache != NGX_SSL_NO_BUILTIN_SCACHE) {
|
|
|
1181
|
|
|
1182 if (builtin_session_cache != NGX_SSL_DFLT_BUILTIN_SCACHE) {
|
|
|
1183 SSL_CTX_sess_set_cache_size(ssl->ctx, builtin_session_cache);
|
|
|
1184 }
|
|
|
1185 }
|
|
|
1186
|
|
274
|
1187 SSL_CTX_set_timeout(ssl->ctx, timeout);
|
|
|
1188
|
|
272
|
1189 if (shm_zone) {
|
|
|
1190 shm_zone->init = ngx_ssl_session_cache_init;
|
|
|
1191
|
|
|
1192 SSL_CTX_sess_set_new_cb(ssl->ctx, ngx_ssl_new_session);
|
|
|
1193 SSL_CTX_sess_set_get_cb(ssl->ctx, ngx_ssl_get_cached_session);
|
|
|
1194 SSL_CTX_sess_set_remove_cb(ssl->ctx, ngx_ssl_remove_session);
|
|
|
1195
|
|
|
1196 if (SSL_CTX_set_ex_data(ssl->ctx, ngx_ssl_session_cache_index, shm_zone)
|
|
|
1197 == 0)
|
|
|
1198 {
|
|
|
1199 ngx_ssl_error(NGX_LOG_EMERG, ssl->log, 0,
|
|
|
1200 "SSL_CTX_set_ex_data() failed");
|
|
|
1201 return NGX_ERROR;
|
|
|
1202 }
|
|
|
1203 }
|
|
|
1204
|
|
|
1205 return NGX_OK;
|
|
|
1206 }
|
|
|
1207
|
|
|
1208
|
|
|
1209 static ngx_int_t
|
|
|
1210 ngx_ssl_session_cache_init(ngx_shm_zone_t *shm_zone, void *data)
|
|
|
1211 {
|
|
|
1212 ngx_slab_pool_t *shpool;
|
|
|
1213 ngx_rbtree_node_t *sentinel;
|
|
|
1214 ngx_ssl_session_cache_t *cache;
|
|
|
1215
|
|
|
1216 if (data) {
|
|
|
1217 shm_zone->data = data;
|
|
|
1218 return NGX_OK;
|
|
|
1219 }
|
|
|
1220
|
|
|
1221 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1222
|
|
|
1223 cache = ngx_slab_alloc(shpool, sizeof(ngx_ssl_session_cache_t));
|
|
|
1224 if (cache == NULL) {
|
|
|
1225 return NGX_ERROR;
|
|
|
1226 }
|
|
|
1227
|
|
|
1228 cache->session_cache_head.prev = NULL;
|
|
|
1229 cache->session_cache_head.next = &cache->session_cache_tail;
|
|
|
1230
|
|
|
1231 cache->session_cache_tail.prev = &cache->session_cache_head;
|
|
|
1232 cache->session_cache_tail.next = NULL;
|
|
|
1233
|
|
|
1234 cache->session_rbtree = ngx_slab_alloc(shpool, sizeof(ngx_rbtree_t));
|
|
|
1235 if (cache->session_rbtree == NULL) {
|
|
|
1236 return NGX_ERROR;
|
|
|
1237 }
|
|
|
1238
|
|
|
1239 sentinel = ngx_slab_alloc(shpool, sizeof(ngx_rbtree_node_t));
|
|
|
1240 if (sentinel == NULL) {
|
|
|
1241 return NGX_ERROR;
|
|
|
1242 }
|
|
|
1243
|
|
|
1244 ngx_rbtree_sentinel_init(sentinel);
|
|
|
1245
|
|
|
1246 cache->session_rbtree->root = sentinel;
|
|
|
1247 cache->session_rbtree->sentinel = sentinel;
|
|
274
|
1248 cache->session_rbtree->insert = ngx_ssl_session_rbtree_insert_value;
|
|
272
|
1249
|
|
|
1250 shm_zone->data = cache;
|
|
|
1251
|
|
|
1252 return NGX_OK;
|
|
|
1253 }
|
|
|
1254
|
|
|
1255
|
|
|
1256 /*
|
|
274
|
1257 * The length of the session id is 16 bytes for SSLv2 sessions and
|
|
|
1258 * between 1 and 32 bytes for SSLv3/TLSv1, typically 32 bytes.
|
|
|
1259 * It seems that the typical length of the external ASN1 representation
|
|
|
1260 * of a session is 118 or 119 bytes for SSLv3/TSLv1.
|
|
|
1261 *
|
|
|
1262 * Thus on 32-bit platforms we allocate separately an rbtree node,
|
|
|
1263 * a session id, and an ASN1 representation, they take accordingly
|
|
|
1264 * 64, 32, and 128 bytes.
|
|
|
1265 *
|
|
|
1266 * On 64-bit platforms we allocate separately an rbtree node + session_id,
|
|
|
1267 * and an ASN1 representation, they take accordingly 128 and 128 bytes.
|
|
|
1268 *
|
|
272
|
1269 * OpenSSL's i2d_SSL_SESSION() and d2i_SSL_SESSION are slow,
|
|
|
1270 * so they are outside the code locked by shared pool mutex
|
|
|
1271 */
|
|
|
1272
|
|
|
1273 static int
|
|
|
1274 ngx_ssl_new_session(ngx_ssl_conn_t *ssl_conn, ngx_ssl_session_t *sess)
|
|
|
1275 {
|
|
|
1276 int len;
|
|
274
|
1277 u_char *p, *id, *cached_sess;
|
|
272
|
1278 uint32_t hash;
|
|
|
1279 SSL_CTX *ssl_ctx;
|
|
|
1280 ngx_time_t *tp;
|
|
|
1281 ngx_shm_zone_t *shm_zone;
|
|
|
1282 ngx_connection_t *c;
|
|
|
1283 ngx_slab_pool_t *shpool;
|
|
|
1284 ngx_ssl_sess_id_t *sess_id;
|
|
|
1285 ngx_ssl_session_cache_t *cache;
|
|
|
1286 u_char buf[NGX_SSL_MAX_SESSION_SIZE];
|
|
|
1287
|
|
|
1288 len = i2d_SSL_SESSION(sess, NULL);
|
|
|
1289
|
|
|
1290 /* do not cache too big session */
|
|
|
1291
|
|
|
1292 if (len > (int) NGX_SSL_MAX_SESSION_SIZE) {
|
|
|
1293 return 0;
|
|
|
1294 }
|
|
|
1295
|
|
|
1296 p = buf;
|
|
|
1297 i2d_SSL_SESSION(sess, &p);
|
|
|
1298
|
|
|
1299 c = ngx_ssl_get_connection(ssl_conn);
|
|
|
1300
|
|
|
1301 ssl_ctx = SSL_get_SSL_CTX(ssl_conn);
|
|
|
1302 shm_zone = SSL_CTX_get_ex_data(ssl_ctx, ngx_ssl_session_cache_index);
|
|
|
1303
|
|
|
1304 cache = shm_zone->data;
|
|
|
1305 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1306
|
|
|
1307 ngx_shmtx_lock(&shpool->mutex);
|
|
|
1308
|
|
|
1309 /* drop one or two expired sessions */
|
|
|
1310 ngx_ssl_expire_sessions(cache, shpool, 1);
|
|
|
1311
|
|
274
|
1312 cached_sess = ngx_slab_alloc_locked(shpool, len);
|
|
272
|
1313
|
|
|
1314 if (cached_sess == NULL) {
|
|
|
1315
|
|
|
1316 /* drop the oldest non-expired session and try once more */
|
|
|
1317
|
|
|
1318 ngx_ssl_expire_sessions(cache, shpool, 0);
|
|
|
1319
|
|
274
|
1320 cached_sess = ngx_slab_alloc_locked(shpool, len);
|
|
272
|
1321
|
|
|
1322 if (cached_sess == NULL) {
|
|
274
|
1323 sess_id = NULL;
|
|
272
|
1324 goto failed;
|
|
|
1325 }
|
|
|
1326 }
|
|
|
1327
|
|
|
1328 sess_id = ngx_slab_alloc_locked(shpool, sizeof(ngx_ssl_sess_id_t));
|
|
|
1329 if (sess_id == NULL) {
|
|
|
1330 goto failed;
|
|
|
1331 }
|
|
|
1332
|
|
274
|
1333 #if (NGX_PTR_SIZE == 8)
|
|
|
1334
|
|
|
1335 id = sess_id->sess_id;
|
|
|
1336
|
|
|
1337 #else
|
|
|
1338
|
|
|
1339 id = ngx_slab_alloc_locked(shpool, sess->session_id_length);
|
|
|
1340 if (id == NULL) {
|
|
|
1341 goto failed;
|
|
|
1342 }
|
|
|
1343
|
|
|
1344 #endif
|
|
|
1345
|
|
|
1346 ngx_memcpy(cached_sess, buf, len);
|
|
272
|
1347
|
|
|
1348 ngx_memcpy(id, sess->session_id, sess->session_id_length);
|
|
|
1349
|
|
|
1350 hash = ngx_crc32_short(sess->session_id, sess->session_id_length);
|
|
|
1351
|
|
|
1352 ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
1353 "http ssl new session: %08XD:%d:%d",
|
|
|
1354 hash, sess->session_id_length, len);
|
|
|
1355
|
|
274
|
1356 tp = ngx_timeofday();
|
|
|
1357
|
|
272
|
1358 sess_id->node.key = hash;
|
|
|
1359 sess_id->node.data = (u_char) sess->session_id_length;
|
|
|
1360 sess_id->id = id;
|
|
|
1361 sess_id->len = len;
|
|
|
1362 sess_id->session = cached_sess;
|
|
|
1363
|
|
274
|
1364 sess_id->expire = tp->sec + SSL_CTX_get_timeout(ssl_ctx);
|
|
|
1365
|
|
|
1366 sess_id->next = cache->session_cache_head.next;
|
|
|
1367 sess_id->next->prev = sess_id;
|
|
|
1368 sess_id->prev = &cache->session_cache_head;
|
|
|
1369 cache->session_cache_head.next = sess_id;
|
|
272
|
1370
|
|
|
1371 ngx_rbtree_insert(cache->session_rbtree, &sess_id->node);
|
|
|
1372
|
|
|
1373 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1374
|
|
|
1375 return 0;
|
|
|
1376
|
|
|
1377 failed:
|
|
|
1378
|
|
|
1379 if (cached_sess) {
|
|
|
1380 ngx_slab_free_locked(shpool, cached_sess);
|
|
|
1381 }
|
|
|
1382
|
|
274
|
1383 if (sess_id) {
|
|
|
1384 ngx_slab_free_locked(shpool, sess_id);
|
|
272
|
1385 }
|
|
|
1386
|
|
|
1387 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1388
|
|
|
1389 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
|
1390 "could not add new SSL session to the session cache");
|
|
|
1391
|
|
|
1392 return 0;
|
|
|
1393 }
|
|
|
1394
|
|
|
1395
|
|
|
1396 static ngx_ssl_session_t *
|
|
|
1397 ngx_ssl_get_cached_session(ngx_ssl_conn_t *ssl_conn, u_char *id, int len,
|
|
|
1398 int *copy)
|
|
|
1399 {
|
|
|
1400 #if OPENSSL_VERSION_NUMBER >= 0x0090707fL
|
|
|
1401 const
|
|
|
1402 #endif
|
|
|
1403 u_char *p;
|
|
|
1404 uint32_t hash;
|
|
274
|
1405 ngx_int_t rc;
|
|
272
|
1406 ngx_time_t *tp;
|
|
|
1407 ngx_shm_zone_t *shm_zone;
|
|
|
1408 ngx_slab_pool_t *shpool;
|
|
|
1409 ngx_connection_t *c;
|
|
|
1410 ngx_rbtree_node_t *node, *sentinel;
|
|
|
1411 ngx_ssl_session_t *sess;
|
|
|
1412 ngx_ssl_sess_id_t *sess_id;
|
|
|
1413 ngx_ssl_session_cache_t *cache;
|
|
|
1414 u_char buf[NGX_SSL_MAX_SESSION_SIZE];
|
|
|
1415
|
|
|
1416 c = ngx_ssl_get_connection(ssl_conn);
|
|
|
1417
|
|
274
|
1418 hash = ngx_crc32_short(id, (size_t) len);
|
|
272
|
1419 *copy = 0;
|
|
|
1420
|
|
|
1421 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
|
|
|
1422 "http ssl get session: %08XD:%d", hash, len);
|
|
|
1423
|
|
|
1424 shm_zone = SSL_CTX_get_ex_data(SSL_get_SSL_CTX(ssl_conn),
|
|
|
1425 ngx_ssl_session_cache_index);
|
|
|
1426
|
|
|
1427 cache = shm_zone->data;
|
|
|
1428
|
|
|
1429 if (cache->session_rbtree == NULL) {
|
|
|
1430 return NULL;
|
|
|
1431 }
|
|
|
1432
|
|
|
1433 sess = NULL;
|
|
|
1434
|
|
|
1435 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1436
|
|
|
1437 ngx_shmtx_lock(&shpool->mutex);
|
|
|
1438
|
|
|
1439 node = cache->session_rbtree->root;
|
|
|
1440 sentinel = cache->session_rbtree->sentinel;
|
|
|
1441
|
|
|
1442 while (node != sentinel) {
|
|
|
1443
|
|
|
1444 if (hash < node->key) {
|
|
|
1445 node = node->left;
|
|
|
1446 continue;
|
|
|
1447 }
|
|
|
1448
|
|
|
1449 if (hash > node->key) {
|
|
|
1450 node = node->right;
|
|
|
1451 continue;
|
|
|
1452 }
|
|
|
1453
|
|
274
|
1454 /* hash == node->key */
|
|
|
1455
|
|
|
1456 do {
|
|
272
|
1457 sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
1458
|
|
274
|
1459 rc = ngx_memn2cmp(id, sess_id->id,
|
|
|
1460 (size_t) len, (size_t) node->data);
|
|
|
1461 if (rc == 0) {
|
|
272
|
1462
|
|
|
1463 tp = ngx_timeofday();
|
|
|
1464
|
|
274
|
1465 if (sess_id->expire > tp->sec) {
|
|
|
1466 ngx_memcpy(buf, sess_id->session, sess_id->len);
|
|
272
|
1467
|
|
|
1468 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1469
|
|
|
1470 p = buf;
|
|
|
1471 sess = d2i_SSL_SESSION(NULL, &p, sess_id->len);
|
|
|
1472
|
|
|
1473 return sess;
|
|
|
1474 }
|
|
|
1475
|
|
274
|
1476 sess_id->next->prev = sess_id->prev;
|
|
|
1477 sess_id->prev->next = sess_id->next;
|
|
272
|
1478
|
|
|
1479 ngx_rbtree_delete(cache->session_rbtree, node);
|
|
|
1480
|
|
274
|
1481 ngx_slab_free_locked(shpool, sess_id->session);
|
|
|
1482 #if (NGX_PTR_SIZE == 4)
|
|
272
|
1483 ngx_slab_free_locked(shpool, sess_id->id);
|
|
274
|
1484 #endif
|
|
272
|
1485 ngx_slab_free_locked(shpool, sess_id);
|
|
|
1486
|
|
|
1487 sess = NULL;
|
|
|
1488
|
|
274
|
1489 goto done;
|
|
272
|
1490 }
|
|
274
|
1491
|
|
|
1492 node = (rc < 0) ? node->left : node->right;
|
|
|
1493
|
|
|
1494 } while (node != sentinel && hash == node->key);
|
|
|
1495
|
|
|
1496 break;
|
|
272
|
1497 }
|
|
|
1498
|
|
274
|
1499 done:
|
|
|
1500
|
|
272
|
1501 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1502
|
|
|
1503 return sess;
|
|
|
1504 }
|
|
|
1505
|
|
|
1506
|
|
|
1507 static void
|
|
|
1508 ngx_ssl_remove_session(SSL_CTX *ssl, ngx_ssl_session_t *sess)
|
|
|
1509 {
|
|
274
|
1510 size_t len;
|
|
|
1511 u_char *id;
|
|
272
|
1512 uint32_t hash;
|
|
274
|
1513 ngx_int_t rc;
|
|
272
|
1514 ngx_shm_zone_t *shm_zone;
|
|
|
1515 ngx_slab_pool_t *shpool;
|
|
|
1516 ngx_rbtree_node_t *node, *sentinel;
|
|
|
1517 ngx_ssl_sess_id_t *sess_id;
|
|
|
1518 ngx_ssl_session_cache_t *cache;
|
|
|
1519
|
|
|
1520 shm_zone = SSL_CTX_get_ex_data(ssl, ngx_ssl_session_cache_index);
|
|
|
1521
|
|
|
1522 cache = shm_zone->data;
|
|
|
1523
|
|
|
1524 id = sess->session_id;
|
|
274
|
1525 len = (size_t) sess->session_id_length;
|
|
|
1526
|
|
|
1527 hash = ngx_crc32_short(id, len);
|
|
272
|
1528
|
|
|
1529 ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0,
|
|
274
|
1530 "http ssl remove session: %08XD:%uz", hash, len);
|
|
272
|
1531
|
|
|
1532 shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
|
|
|
1533
|
|
|
1534 ngx_shmtx_lock(&shpool->mutex);
|
|
|
1535
|
|
|
1536 node = cache->session_rbtree->root;
|
|
|
1537 sentinel = cache->session_rbtree->sentinel;
|
|
|
1538
|
|
|
1539 while (node != sentinel) {
|
|
|
1540
|
|
|
1541 if (hash < node->key) {
|
|
|
1542 node = node->left;
|
|
|
1543 continue;
|
|
|
1544 }
|
|
|
1545
|
|
|
1546 if (hash > node->key) {
|
|
|
1547 node = node->right;
|
|
|
1548 continue;
|
|
|
1549 }
|
|
|
1550
|
|
274
|
1551 /* hash == node->key */
|
|
|
1552
|
|
|
1553 do {
|
|
272
|
1554 sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
1555
|
|
274
|
1556 rc = ngx_memn2cmp(id, sess_id->id, len, (size_t) node->data);
|
|
|
1557
|
|
|
1558 if (rc == 0) {
|
|
|
1559 sess_id->next->prev = sess_id->prev;
|
|
|
1560 sess_id->prev->next = sess_id->next;
|
|
272
|
1561
|
|
|
1562 ngx_rbtree_delete(cache->session_rbtree, node);
|
|
|
1563
|
|
274
|
1564 ngx_slab_free_locked(shpool, sess_id->session);
|
|
|
1565 #if (NGX_PTR_SIZE == 4)
|
|
272
|
1566 ngx_slab_free_locked(shpool, sess_id->id);
|
|
274
|
1567 #endif
|
|
272
|
1568 ngx_slab_free_locked(shpool, sess_id);
|
|
|
1569
|
|
274
|
1570 goto done;
|
|
272
|
1571 }
|
|
274
|
1572
|
|
|
1573 node = (rc < 0) ? node->left : node->right;
|
|
|
1574
|
|
|
1575 } while (node != sentinel && hash == node->key);
|
|
|
1576
|
|
|
1577 break;
|
|
272
|
1578 }
|
|
|
1579
|
|
274
|
1580 done:
|
|
|
1581
|
|
272
|
1582 ngx_shmtx_unlock(&shpool->mutex);
|
|
|
1583 }
|
|
|
1584
|
|
|
1585
|
|
|
1586 static void
|
|
|
1587 ngx_ssl_expire_sessions(ngx_ssl_session_cache_t *cache,
|
|
|
1588 ngx_slab_pool_t *shpool, ngx_uint_t n)
|
|
|
1589 {
|
|
274
|
1590 ngx_time_t *tp;
|
|
|
1591 ngx_ssl_sess_id_t *sess_id;
|
|
272
|
1592
|
|
|
1593 tp = ngx_timeofday();
|
|
|
1594
|
|
|
1595 while (n < 3) {
|
|
|
1596
|
|
274
|
1597 sess_id = cache->session_cache_tail.prev;
|
|
|
1598
|
|
|
1599 if (sess_id == &cache->session_cache_head) {
|
|
272
|
1600 return;
|
|
|
1601 }
|
|
|
1602
|
|
274
|
1603 if (n++ != 0 && sess_id->expire > tp->sec) {
|
|
332
|
1604 return;
|
|
272
|
1605 }
|
|
|
1606
|
|
274
|
1607 sess_id->next->prev = sess_id->prev;
|
|
|
1608 sess_id->prev->next = sess_id->next;
|
|
272
|
1609
|
|
|
1610 ngx_rbtree_delete(cache->session_rbtree, &sess_id->node);
|
|
|
1611
|
|
|
1612 ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ngx_cycle->log, 0,
|
|
|
1613 "expire session: %08Xi", sess_id->node.key);
|
|
|
1614
|
|
274
|
1615 ngx_slab_free_locked(shpool, sess_id->session);
|
|
|
1616 #if (NGX_PTR_SIZE == 4)
|
|
272
|
1617 ngx_slab_free_locked(shpool, sess_id->id);
|
|
274
|
1618 #endif
|
|
272
|
1619 ngx_slab_free_locked(shpool, sess_id);
|
|
|
1620 }
|
|
|
1621 }
|
|
|
1622
|
|
|
1623
|
|
274
|
1624 static void
|
|
|
1625 ngx_ssl_session_rbtree_insert_value(ngx_rbtree_node_t *temp,
|
|
|
1626 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel)
|
|
|
1627 {
|
|
|
1628 ngx_ssl_sess_id_t *sess_id, *sess_id_temp;
|
|
|
1629
|
|
|
1630 for ( ;; ) {
|
|
|
1631
|
|
|
1632 if (node->key < temp->key) {
|
|
|
1633
|
|
|
1634 if (temp->left == sentinel) {
|
|
|
1635 temp->left = node;
|
|
|
1636 break;
|
|
|
1637 }
|
|
|
1638
|
|
|
1639 temp = temp->left;
|
|
|
1640
|
|
|
1641 } else if (node->key > temp->key) {
|
|
|
1642
|
|
276
|
1643 if (temp->right == sentinel) {
|
|
274
|
1644 temp->right = node;
|
|
|
1645 break;
|
|
|
1646 }
|
|
|
1647
|
|
|
1648 temp = temp->right;
|
|
|
1649
|
|
|
1650 } else { /* node->key == temp->key */
|
|
|
1651
|
|
|
1652 sess_id = (ngx_ssl_sess_id_t *) node;
|
|
|
1653 sess_id_temp = (ngx_ssl_sess_id_t *) temp;
|
|
|
1654
|
|
|
1655 if (ngx_memn2cmp(sess_id->id, sess_id_temp->id,
|
|
|
1656 (size_t) node->data, (size_t) temp->data)
|
|
|
1657 < 0)
|
|
|
1658 {
|
|
|
1659 if (temp->left == sentinel) {
|
|
|
1660 temp->left = node;
|
|
|
1661 break;
|
|
|
1662 }
|
|
|
1663
|
|
|
1664 temp = temp->left;
|
|
276
|
1665
|
|
274
|
1666 } else {
|
|
276
|
1667
|
|
274
|
1668 if (temp->right == sentinel) {
|
|
|
1669 temp->right = node;
|
|
|
1670 break;
|
|
|
1671 }
|
|
|
1672
|
|
|
1673 temp = temp->right;
|
|
|
1674 }
|
|
|
1675 }
|
|
|
1676 }
|
|
|
1677
|
|
|
1678 node->parent = temp;
|
|
|
1679 node->left = sentinel;
|
|
|
1680 node->right = sentinel;
|
|
|
1681 ngx_rbt_red(node);
|
|
276
|
1682 }
|
|
274
|
1683
|
|
|
1684
|
|
58
|
1685 void
|
|
|
1686 ngx_ssl_cleanup_ctx(void *data)
|
|
|
1687 {
|
|
138
|
1688 ngx_ssl_t *ssl = data;
|
|
58
|
1689
|
|
138
|
1690 SSL_CTX_free(ssl->ctx);
|
|
58
|
1691 }
|
|
90
|
1692
|
|
|
1693
|
|
220
|
1694 ngx_int_t
|
|
|
1695 ngx_ssl_get_protocol(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
160
|
1696 {
|
|
220
|
1697 s->data = (u_char *) SSL_get_version(c->ssl->connection);
|
|
|
1698 return NGX_OK;
|
|
160
|
1699 }
|
|
|
1700
|
|
|
1701
|
|
220
|
1702 ngx_int_t
|
|
|
1703 ngx_ssl_get_cipher_name(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
160
|
1704 {
|
|
220
|
1705 s->data = (u_char *) SSL_get_cipher_name(c->ssl->connection);
|
|
|
1706 return NGX_OK;
|
|
160
|
1707 }
|
|
|
1708
|
|
|
1709
|
|
196
|
1710 ngx_int_t
|
|
|
1711 ngx_ssl_get_subject_dn(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
1712 {
|
|
|
1713 char *p;
|
|
|
1714 size_t len;
|
|
|
1715 X509 *cert;
|
|
|
1716 X509_NAME *name;
|
|
|
1717
|
|
|
1718 s->len = 0;
|
|
|
1719
|
|
|
1720 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
1721 if (cert == NULL) {
|
|
|
1722 return NGX_OK;
|
|
|
1723 }
|
|
|
1724
|
|
|
1725 name = X509_get_subject_name(cert);
|
|
|
1726 if (name == NULL) {
|
|
|
1727 return NGX_ERROR;
|
|
|
1728 }
|
|
|
1729
|
|
|
1730 p = X509_NAME_oneline(name, NULL, 0);
|
|
|
1731
|
|
|
1732 for (len = 0; p[len]; len++) { /* void */ }
|
|
|
1733
|
|
|
1734 s->len = len;
|
|
|
1735 s->data = ngx_palloc(pool, len);
|
|
|
1736 if (s->data == NULL) {
|
|
|
1737 OPENSSL_free(p);
|
|
|
1738 return NGX_ERROR;
|
|
|
1739 }
|
|
|
1740
|
|
|
1741 ngx_memcpy(s->data, p, len);
|
|
|
1742
|
|
|
1743 OPENSSL_free(p);
|
|
|
1744
|
|
|
1745 return NGX_OK;
|
|
|
1746 }
|
|
|
1747
|
|
|
1748
|
|
|
1749 ngx_int_t
|
|
|
1750 ngx_ssl_get_issuer_dn(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
1751 {
|
|
|
1752 char *p;
|
|
|
1753 size_t len;
|
|
|
1754 X509 *cert;
|
|
|
1755 X509_NAME *name;
|
|
|
1756
|
|
|
1757 s->len = 0;
|
|
|
1758
|
|
|
1759 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
1760 if (cert == NULL) {
|
|
|
1761 return NGX_OK;
|
|
|
1762 }
|
|
|
1763
|
|
|
1764 name = X509_get_issuer_name(cert);
|
|
|
1765 if (name == NULL) {
|
|
|
1766 return NGX_ERROR;
|
|
|
1767 }
|
|
|
1768
|
|
|
1769 p = X509_NAME_oneline(name, NULL, 0);
|
|
|
1770
|
|
|
1771 for (len = 0; p[len]; len++) { /* void */ }
|
|
|
1772
|
|
|
1773 s->len = len;
|
|
|
1774 s->data = ngx_palloc(pool, len);
|
|
|
1775 if (s->data == NULL) {
|
|
|
1776 OPENSSL_free(p);
|
|
|
1777 return NGX_ERROR;
|
|
|
1778 }
|
|
|
1779
|
|
|
1780 ngx_memcpy(s->data, p, len);
|
|
|
1781
|
|
|
1782 OPENSSL_free(p);
|
|
|
1783
|
|
|
1784 return NGX_OK;
|
|
|
1785 }
|
|
|
1786
|
|
|
1787
|
|
220
|
1788 ngx_int_t
|
|
|
1789 ngx_ssl_get_serial_number(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
|
|
|
1790 {
|
|
|
1791 size_t len;
|
|
|
1792 X509 *cert;
|
|
|
1793 BIO *bio;
|
|
|
1794
|
|
|
1795 s->len = 0;
|
|
|
1796
|
|
|
1797 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
1798 if (cert == NULL) {
|
|
|
1799 return NGX_OK;
|
|
|
1800 }
|
|
|
1801
|
|
|
1802 bio = BIO_new(BIO_s_mem());
|
|
|
1803 if (bio == NULL) {
|
|
|
1804 return NGX_ERROR;
|
|
|
1805 }
|
|
|
1806
|
|
|
1807 i2a_ASN1_INTEGER(bio, X509_get_serialNumber(cert));
|
|
|
1808 len = BIO_pending(bio);
|
|
|
1809
|
|
|
1810 s->len = len;
|
|
|
1811 s->data = ngx_palloc(pool, len);
|
|
|
1812 if (s->data == NULL) {
|
|
|
1813 BIO_free(bio);
|
|
|
1814 return NGX_ERROR;
|
|
|
1815 }
|
|
|
1816
|
|
|
1817 BIO_read(bio, s->data, len);
|
|
|
1818 BIO_free(bio);
|
|
|
1819
|
|
|
1820 return NGX_OK;
|
|
|
1821 }
|
|
|
1822
|
|
|
1823
|
|
90
|
1824 static void *
|
|
|
1825 ngx_openssl_create_conf(ngx_cycle_t *cycle)
|
|
|
1826 {
|
|
|
1827 ngx_openssl_conf_t *oscf;
|
|
126
|
1828
|
|
90
|
1829 oscf = ngx_pcalloc(cycle->pool, sizeof(ngx_openssl_conf_t));
|
|
|
1830 if (oscf == NULL) {
|
|
|
1831 return NGX_CONF_ERROR;
|
|
|
1832 }
|
|
126
|
1833
|
|
90
|
1834 /*
|
|
|
1835 * set by ngx_pcalloc():
|
|
126
|
1836 *
|
|
90
|
1837 * oscf->engine.len = 0;
|
|
|
1838 * oscf->engine.data = NULL;
|
|
126
|
1839 */
|
|
90
|
1840
|
|
|
1841 return oscf;
|
|
|
1842 }
|
|
|
1843
|
|
|
1844
|
|
|
1845 static char *
|
|
|
1846 ngx_openssl_init_conf(ngx_cycle_t *cycle, void *conf)
|
|
|
1847 {
|
|
|
1848 #if (NGX_SSL_ENGINE)
|
|
|
1849 ngx_openssl_conf_t *oscf = conf;
|
|
120
|
1850
|
|
90
|
1851 ENGINE *engine;
|
|
|
1852
|
|
|
1853 if (oscf->engine.len == 0) {
|
|
|
1854 return NGX_CONF_OK;
|
|
|
1855 }
|
|
126
|
1856
|
|
90
|
1857 engine = ENGINE_by_id((const char *) oscf->engine.data);
|
|
|
1858
|
|
|
1859 if (engine == NULL) {
|
|
|
1860 ngx_ssl_error(NGX_LOG_WARN, cycle->log, 0,
|
|
|
1861 "ENGINE_by_id(\"%V\") failed", &oscf->engine);
|
|
|
1862 return NGX_CONF_ERROR;
|
|
|
1863 }
|
|
|
1864
|
|
|
1865 if (ENGINE_set_default(engine, ENGINE_METHOD_ALL) == 0) {
|
|
|
1866 ngx_ssl_error(NGX_LOG_WARN, cycle->log, 0,
|
|
|
1867 "ENGINE_set_default(\"%V\", ENGINE_METHOD_ALL) failed",
|
|
|
1868 &oscf->engine);
|
|
|
1869 return NGX_CONF_ERROR;
|
|
|
1870 }
|
|
|
1871
|
|
|
1872 ENGINE_free(engine);
|
|
|
1873
|
|
|
1874 #endif
|
|
|
1875
|
|
|
1876 return NGX_CONF_OK;
|
|
|
1877 }
|
|
|
1878
|
|
|
1879
|
|
|
1880 #if !(NGX_SSL_ENGINE)
|
|
|
1881
|
|
|
1882 static char *
|
|
|
1883 ngx_openssl_noengine(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
1884 {
|
|
|
1885 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
112
|
1886 "\"ssl_engine\" directive is available only in "
|
|
|
1887 "OpenSSL 0.9.7 and higher,");
|
|
90
|
1888
|
|
|
1889 return NGX_CONF_ERROR;
|
|
|
1890 }
|
|
|
1891
|
|
|
1892 #endif
|
|
120
|
1893
|
|
|
1894
|
|
|
1895 static void
|
|
|
1896 ngx_openssl_exit(ngx_cycle_t *cycle)
|
|
|
1897 {
|
|
|
1898 #if (NGX_SSL_ENGINE)
|
|
|
1899 ENGINE_cleanup();
|
|
|
1900 #endif
|
|
|
1901 }
|
